Aluminum chair construction



May 22, 1962 s. B. RADUNS ALUMINUM CHAIR CONSTRUCTION 2 Sheets-Sheet 1Filed June 30, 1958 INVENTOR. SOLOMON B. RADUIVS BY 4 ATTORNEY y 1962 s.B. RADUNS 3,035,866

ALUMINUM CHAIR CONSTRUCTION Filed June 30, 1958 2 Sheets-Sheet 2INVENTOR. SOLOMON B. fiAOU/VS 57 57 5% 7 UV ATTORNEY United StatesPatent 3,035,866 ALUMINUM CHAIR CONSTRUCTION Solomon B. Raduns, 491017th Ave., Brooklyn, N.Y. Filed June 30, 1958, Ser. No. 777,165 Claims.(Cl. 297-454) The present invention relates to an aluminum chairconstruction and it particularly relates to a tubular aluminum chairconstruction.

It is among the objects of the present invention to pro vide a simple,durable aluminum chair construction which may be made of tubular partswith a matted or woven seat and back, and which will be comfortable forthe user without causing any bars or part of the aluminum structure tobear upon the back or bottom of the user while sitting therein.

Another object is to provide a novel plastic handle to be mounted uponsuch chair which may be attached thereto and which will give a finishedappearance to the chair without substantially increasing the costthereof.

Still further objects and advantages will appear in the more detaileddescription set forth below, it being understood, however, that thismore detailed description is given by way of illustration andexplanation only and not by way of limitation, since various changestherein may be made by those skilled in the art without departing fromthe scope and spirit of the present invention.

In accomplishing the above objects it has been found most satisfactoryto form a chair of a continuous rectangular shaped tubing structure,then to form a back and a seat, with plastic webbing forming both theseat portion and the back portion.

A particular feature of the present invention resides in the fact thatthe angle or base of the chair has a U shaped extension member, the endsof which will be mounted in the sides but which will be removed withinthe line of the body so as not to project into the body and to permitthe user of the chair to sit in comfortable position.

In the preferred form of the invention the U-shaped brace member whichextends from side to side of the chair frame will have inturned endportions fitting into openings in the rear of the bends at the sides ofthe rectangular frame and will be held in position therein by thewebbing. The side members may be made of a continuous tube havingtrapezoidal side arm rest members with vertical and rear cross members.

Another feature of the present invention resides in the fact that thearm rest carries plastic members which are mounted on the tubularmembers and have extensions upon which the forearms of the user mayrest.

These arm rests not only add to the comfort of the user but also enhancethe decorative appearance of the chair.

With the foregoing and other objects in view, the invention consists ofthe novel construction, combination and arrangement of parts ashereinafter more specifically described, and illustrated in theaccompanying drawings, wherein is shown an embodiment of the invention,but it is to be understood that changes, variations and modificationscan be resorted to which fall within the scope of the claims hereuntoappended.

In the drawings wherein like reference characters denote correspondingparts throughout the several views:

FIG. 1 is a front perspective view showing the arm rest in position andthe cross member between the back and seat elements, held in position bythe webbing.

FIG. 2 is a side elevational view of the structure of FIG. 1.

FIG. 3 is a separated view showing the cross member ice and its mannerof assembly to the rectangular seat and back member.

FIG. 4 is a fragmentary transverse sectional view showing the manner inwhich the end right angular legs of the cross member are inserted in theangle of the frame member.

FIG. 5 is a transverse vertical sectional view on the line 5-5 of FIG.2, upon an enlarged scale as compared to FIG. 2.

FIG. 6 is a separated view showing the bottom of the handle structureand its method of connection to the side arm members of the chair.

Referring to FIGS. 1 to 4, there is shown a main rectangular frame Ahaving a back portion B and a seat portion C and the transverse U-shapedreinforcing member D.

The back member B is provided with the open woven mesh or strapping E,while the seat member is provided with the strapping F. The legstructure is provided by the side trapezoidal members G which have theintegral cross member H at the rear thereof and the forward U-shapedconnecting member I.

The side trapezoidal arm members G are provided with the arm rests Kwhich may be molded of plastic.

An important feature of the present invention is the U-shaped member D,which has an elongated base 10 with the transverse end legs 11. Thetransverse legs 11 fit into the openings 12 at the bends 13 between theback portion B and the seat portion C.

The legs 11, as shown in FIG. 4, will be fitted into the openings 12 attheir ends 15 and will contact the inside face 16 of the bends 13.

The elongated portions 17 of the strapping or woven material E and F,extending from the upper cross mem-' her to the lower cross member 19,will pass over the mem ber 10 and hold it tightly in position, with theends 15 of the legs 11 contacting the inside surfaces 16 at the bends13.

Since the cross bar is substantially removed from the bend 13 and is tothe rear of the bend, it will not press against the back or rear of theuser of the chair and will make the chair much more comfortable than ifthe bar extended directly and transversely between the bends 13.

The side leg and arm rest members G, as shown in H68. 1 and 2, have theforwardly and downwardly inclined legs 35 with the substantiallyhorizontal top portions 36 and the downwardly and rearwardly inclinedtubular portions 37. The lower ends of the tubular portions 37 areconnected by the cross member H.

The forward leg members 35 are connected by the U-shaped member I withthe side legs 38 held in position by the rivets 39. It will be notedthat the side members 35 are attached to the structure C by the bolts orrivets 49 and that the rear members 37 are attached to the sidestructure B by the bolts or rivets 41.

The arm rests K have the top flat portions 50, the downwardly extendingfin 51 and the transverse reinforcing fins 52.

The fins 51 are held in position by the screws 53 fitted into the sides54 of the tubular member G.

The top structure 50 has the upwardly extending pad member 55 with theextension 56 and with the bolts 57 extending through the tubular members36 and screwed into the pads 55, as best shown in FIG. 5.

These bolts 57, as shown in the separated view of FIG. 6, extend throughthe openings 58 in the tubular member 36. Two of the pads 55 receive thethreaded ends 59 of the bolts 57, while there are three other pads 60which serve to fix the position of the arms K upon the tubular member G.

This plastic arm rest K is conveniently mounted upon the tubular memberG and is held in position by the bolts 57 and the screws 53 and providesa comfortable position for the arms, as well as adding to theattractiveness of the chair.

As many changes could be made in the above aluminum chair construction,and many widely different embodiments of this invention could be madewithout departure from the scope of the claims, it is intended that allmatter contained in the above description shall be interpreted asillustrative and not in a limiting sense.

Having now particularly described and ascertained the nature of theinvention, and in what manner the same is to be performed, what isclaimed is: V

1. A tubular chair construction having a tubular frame seat and back anda cross brace member, said member being of U shape and having atransverse element and short end members and said brace member beingsupported by its end members out of the plane of the frame, said crossbrace member being located at the bottom of the junction of the seat andback and having its transverse element positioned substantially belowand to the rear'of the junction so that the rear of the body of the userwill not contact the same.

2. A tubular chair construction having a tubular frame seat and back anda cross brace member, said member being of U shape and having atransverse element and short end members and said brace member beingsupported by its end members out of the plane of the frame, said crossbrace having inturned right angular leg members and said tubular framehaving recesses to receive said leg members and cross webbing to holdsaid cross members in position, said cross brace member being located atthe bottom of the junction of the seat and back and having itstransverse element positioned substantially below and to the rear of thejunction so that the rear of the body of the user will not contact thesame.

3. A tubular chair construction having a tubular frame seat and back anda cross brace member, said member being of U shape and having atransverse element and short end members and said brace member beingsupported by its end members out of the plane of the frame, said tubularframe having a rectangular back portion and a rectangular seat portionformed of integral aluminum tubing, and the ends of said frame beingconnected with said webbing so as to hold said cross members inposition, said cross brace member being located at the bottom of thejunction of the seat and back and having its transverse elementpositioned substantially below and to the rear of the junction so thatthe rear of the body of the user will not contact the same.

4. An aluminum tubular frame chair construction having a mainrectangular frame with a horizontal U-shaped structure forming a seatand a substantially vertical upwardly and rearwardly inclined U-shapedstructure forming a back, the seat and the back being joined at an anglein the sides of the rectangular frame, a plurality of straps extendingfrom the top to the bottom of the frame to form body support membersbetween the sides of the frame and a U-shaped member having a transverseelement positioned below, beyond and to the rear of the angle at thejunction of the back and the seat and having side leg members extendingupwardly and inwardly to the joining portions and bisecting the angle ofsaid joining portions and the bight of said straps being held below andto the rear of said joining portions by said transverse element.

5. The chair construction of claim 4, said junctions having openings atthe rear lower sides thereof at the point of maximum curvature and saidleg members extending into said openings and abutting the inside turnedfaces of said tubular members opposite said openings.

References Cited in the file of this patent UNITED STATES PATENTS1,989,203 Larsen I an. 29, 1935 2,586,262 Robins Feb. 19, 1952 2,622,663Burd Dec. 23, 1952 2,690,212 Jakeway Sept. 28, 1954 2,802,518 LiljengrenAug. 13, 1957 2,821,245 Meneghelli Jan. 28, 1958 2,834,404 Groome May13, 1958

